1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natta225 [31]
3 years ago
7

What is the largest natural barrier to infection?

Biology
1 answer:
Anna35 [415]3 years ago
3 0
Skin is the Largest barrier agaisnt Pathogens which include Bacteria which cause infections.
You might be interested in
Two species of tree frogs that live sympatrically in the northeastern United States differ in ploidy: Hyla chrysoscelis is diplo
Artist 52 [7]

Answer:

The correct answer is - polyploidy.

Explanation:

Speciation can be two types allopatric and sympatric speciation. Sympatric speciation is the process of speciation is developing the new species that diverged from the common ancestral species while the ancestral and developed species both can share the same place or geological area. The main cause of such speciation is due to the change in their genetic level more than environmental conditions.

In this case, the frog's species show differences in their ploidy level as well as their mating call but polyploidy is the most likely the difference that evolved first rather than females call for mating.

Thus, the correct answer is - polyploidy.

5 0
3 years ago
A student states that organisms that reproduce asexually are at a disadvantage in an unstable environment do you agree or disagr
True [87]
Organisms that reproduce asexually have less chances for genetic mutation and genetic drift, meaning that if something is introduced into the environment that causes the organism to be unable to survive, it wont have a variation that might make it possible to live.
7 0
3 years ago
Read 2 more answers
Mrs. Comet is blood type A and Mr. Comet is blood type
AnnZ [28]

Answer:

I THINK

Explanation:

either A,B, AB,O

or just A,B, AB

3 0
3 years ago
People who live in tundra, will get more vitamin D. True or False.
cestrela7 [59]
False

Darker skin

Good luck
8 0
3 years ago
Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two ca
Klio2033 [76]

Answer:

The main difference between Prokaryotic and Eukaryotic cell is that, eukaryotes contain membrane bound organelles like nucleus where as prokaryotes do not. The genetic material is present at the center and is called nucleoid in prokaryotes.

Explanation:

Example of prokaryotes include bacteria and archea bacteria. Examples of eukaryotes include plants and animals. Prokaryotes lack organelles such as mitochondria, endoplasmic resticulum and lysosomes which are present in eukaryotes. Both the groups contain ribosomes but its 70s ribosome in prokaryotes and 80s ribosomes in eukaryotes.

6 0
3 years ago
Read 2 more answers
Other questions:
  • During which phase does the nucleus begin to break down?
    9·2 answers
  • Which process is characterized by the movement of particles from an area of a high concentration to an area of low concentration
    10·2 answers
  • 1. A polymer is comprised of repeating monomers that are connected to each other through dehydration synthesis reactions. What a
    5·1 answer
  • Josh drank a Mountain Dew, why did his urine look electric lime colored afterwards? How did the circulatory, Digestive and the E
    15·1 answer
  • NAME TWO NEGATIVE BEHAVIORS OF A PROTIST<br><br> HELPP
    6·1 answer
  • The human number of chromosomes is 46, so this means:
    7·1 answer
  • The simplest and most abundant form of life on Earth today are the
    13·1 answer
  • Zara is an excellent violin player. Which part of her brain is responsible for the motor skills involved in playing a violin?
    6·2 answers
  • After throwing a basketball through the net, Anna observed the ball as it hit the
    15·2 answers
  • Which of the following would not regulate genes in a eukaryote
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!